News has just come across the wires of the passing of actor James MacArthur at the age of 72.
MacArthur, the son of stage & screen legend Helen Hayes, is best remembered, of course, as Danny "Danno" Williams in the original Hawaii Five-0 (1968-80), but he also had a relatively modest film career of his own, with credits including "Kidnapped" & "Swiss Family Robinson". Perhaps the proudest moment of his career came MacArthur acted with his mother in an episode of Hawaii Five-0 in 1975. Miss Hayes had come off a short run in NBC's Snoop Sisters when she appeared on Five-0. MacArthur left the series 4 years later, prior to the start of the series' final season.
More than likely, there will be a tribute dedication graphic attached to a forthcoming episode of the current Five-0, in which Scott Caan, a second generation actor himself, plays Williams.
Rest in peace, James.